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Class 9 Mcq

Class 9 Science के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ScienceA study produces highly precise results but measures a variable unrelated to the hypothesis. How should the conclusion be judged?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2ExpertScienceAn instrument is correctly calibrated but different observers use different measuring procedures. What may cause variation in results?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2ExpertScienceIf a study result appears under only one analysis method but not under other reasonable methods what should be examined?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2ExpertScienceA theory explains many phenomena but each prediction is extremely vague. What is the scientific limitation?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2ExpertScienceA scientific conclusion was based only on improvement after treatment. Which additional comparison is most necessary?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2ExpertScienceSensitive survey questions were asked in the presence of a teacher. How may the results be affected?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2ExpertScienceA scientific claim is very simple but fails to explain much of the available evidence. Is choosing it only for simplicity appropriate?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2ExpertScienceIn an experiment the levels of the independent variable were very close and the instrument was not sensitive enough. What outcome is possible?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2ExpertScienceA claim is supported by a very large sample but the instrument measures the wrong concept. What is the main problem?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2ExpertScienceIn an experiment all participants knew they were in the treatment group. Which effect may influence the outcome?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2ExpertScienceWhat is it called when independent evidence obtained through different methods points to the same conclusion?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2ExpertScienceOnly successful experiments were published while unsuccessful ones were not recorded. How may the effect appear?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2ExpertScienceThe meaning of a hypothesis was changed after the experiment to protect it. Why is this scientifically problematic?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2ExpertScienceAn experiment produced different readings each time but all were spread around the true value. What does this indicate?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2ExpertScienceA scientific model fits all past data but repeatedly fails in future tests. What is the best evaluation?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2ExpertScienceIf ten studies supporting a claim are different analyses of the same original dataset what is the real strength of the evidence?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2ExpertScienceA scientific study found different outcomes between two groups but the groups were already different before the experiment. What is the most appropriate conclusion about causation?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2ExpertScienceWhich is the most mature description of the nature of science?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 1ExpertScienceWhy does treating science only as a list of discoveries give an incomplete picture of its nature?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 1ExpertScienceEvidence for a scientific claim is very strong but its social use is ethically disputed. Which statement is correct?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 1Expert

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